Home / 1,561,651.12-2,154,989.10-863,890.24

Finding the Fourth Proportional to 1,561,651.12, 2,154,989.10 and 863,890.24

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Solution

The fourth proportional to 1,561,651.12, 2,154,989.10 and 863,890.24 is: 1,192,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,651.12 : 2,154,989.10 = 863,890.24 : x
  2. Step 2: Convert to fraction form
    1,561,651.12/2,154,989.10 = 863,890.24/x
  3. Step 3: Cross multiply
    1,561,651.12x = 2,154,989.10 × 863,890.24
  4. Step 4: Simplify right side
    1,561,651.12x = 1,861,674,050,796.38
  5. Step 5: Solve for x
    x = 1,861,674,050,796.38/1,561,651.12
  6. Step 6: Final answer
    x = 1,192,119.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.